<?php

namespace frontend\controllers;

use Yii;
use common\models\Post;
use common\models\PostSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use common\models\Tag;
use common\models\Comment;
use common\models\User;

/**
 * PostController implements the CRUD actions for Post model.
 */
class PostController extends Controller
{
    public $added=0; //0代表还没有新回复
    /**
     * @inheritDoc
     */
    public function behaviors()
    {
        return array_merge(
            parent::behaviors(),
            [
                'verbs' => [
                    'class' => VerbFilter::className(),
                    'actions' => [
                        'delete' => ['POST'],
                    ],
                ],
            ]
        );
    }

    /**
     * Lists all Post models.
     *
     * @return string
     */
    public function actionIndex()
    {
        $tags=Tag::findTagWeights();
         
        $searchModel = new PostSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
    
        return $this->render('index', [
                'searchModel' => $searchModel,
                'dataProvider' => $dataProvider,
                'tags'=>$tags,
        ]);
    }

    /**
     * Displays a single Post model.
     * @param int $id ID
     * @return string
     * @throws NotFoundHttpException if the model cannot be found
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

    /**
     * Creates a new Post model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return string|\yii\web\Response
     */
    public function actionCreate()
    {
        $model = new Post();

        if ($this->request->isPost) {
            if ($model->load($this->request->post()) && $model->save()) {
                return $this->redirect(['view', 'id' => $model->id]);
            }
        } else {
            $model->loadDefaultValues();
        }

        return $this->render('create', [
            'model' => $model,
        ]);
    }

    /**
     * Updates an existing Post model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param int $id ID
     * @return string|\yii\web\Response
     * @throws NotFoundHttpException if the model cannot be found
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);

        if ($this->request->isPost && $model->load($this->request->post()) && $model->save()) {
            return $this->redirect(['view', 'id' => $model->id]);
        }

        return $this->render('update', [
            'model' => $model,
        ]);
    }

    /**
     * Deletes an existing Post model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param int $id ID
     * @return \yii\web\Response
     * @throws NotFoundHttpException if the model cannot be found
     */
    public function actionDelete($id)
    {
        $this->findModel($id)->delete();

        return $this->redirect(['index']);
    }

    /**
     * Finds the Post model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param int $id ID
     * @return Post the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = Post::findOne(['id' => $id])) !== null) {
            return $model;
        }

        throw new NotFoundHttpException('The requested page does not exist.');
    }

    public function actionDetail($id)
    {
        //step1. 准备数据模型     
        $model = $this->findModel($id);//公告
        $tags=Tag::findTagWeights();
        $recentComments=Comment::findRecentComments();//近期评论s
        
        $userMe = User::findOne(Yii::$app->user->id);//当前用户
        $commentModel = new Comment();
        $commentModel->email = $userMe->email;
        $commentModel->userid = $userMe->id;
        
        //step2. 当评论提交时，处理评论
        if($commentModel->load(Yii::$app->request->post()))
        {
            $commentModel->status = 1; //新评论默认状态为 pending
            $commentModel->post_id = $id;
            if($commentModel->save())
            {
                $this->added=1;
            }
        }
        
        //step3.传数据给视图渲染

        if($userMe->load(Yii::$app->request->post())){
            $userMe->write_info=$model->info;
            if($userMe->save())
            {
                $this->added=2;
            }
        }
        
        return $this->render('detail',[
                'model'=>$model,//公告
                'tags'=>$tags,
                'userMe'=>$userMe,
                'recentComments'=>$recentComments,
                'commentModel'=>$commentModel, 
                'added'=>$this->added,          
        ]);

        
    }
}
